Avif support

README.rst

@@ -432,6 +432,7 @@ picfit currently supports the following image formats:
 - ``image/gif`` with the keyword ``gif``
 - ``image/bmp`` with the keyword ``bmp``
 - ``image/webp`` with the keyword ``webp``
+- ``image/avif`` with the keyword ``avif``
 
 Operations
 ==========

engine/backend/goimage.go

@@ -21,6 +21,7 @@ import (
 	imagefile "github.com/thoas/picfit/image"
 
 	"github.com/chai2010/webp"
+	"github.com/gen2brain/avif"
 	"golang.org/x/image/bmp"
 	"golang.org/x/image/tiff"
 )
@@ -106,7 +107,6 @@ func (e *GoImage) Fit(ctx context.Context, img *imagefile.ImageFile, options *Op
 	return e.transform(image, options, imaging.Fit)
 }
 
-
 func (e *GoImage) Effect(ctx context.Context, img *imagefile.ImageFile, options *Options) ([]byte, error) {
 	image, err := e.source(img)
 	if err != nil {
@@ -274,6 +274,8 @@ func encode(w io.Writer, img image.Image, format imagefile.Format, quality int)
 		err = bmp.Encode(w, img)
 	case imagefile.WEBP:
 		err = webp.Encode(w, img, &webp.Options{Quality: float32(quality)})
+	case imagefile.AVIF:
+		err = avif.Encode(w, img, avif.Options{Quality: quality})
 	default:
 		err = imaging.ErrUnsupportedFormat
 	}

engine/constants.go

@@ -8,6 +8,7 @@ var (
 		"jpg":  "image/jpeg",
 		"png":  "image/png",
 		"webp": "image/webp",
+		"avif": "image/avif",
 	}
 
 	MimeTypes = []string{
@@ -16,5 +17,6 @@ var (
 		"image/jpeg",
 		"image/png",
 		"image/webp",
+		"image/avif",
 	}
 )

go.mod

@@ -33,6 +33,7 @@ require (
 
 require (
 	github.com/chai2010/webp v1.1.1
+	github.com/gen2brain/avif v0.4.2
 	github.com/google/uuid v1.3.0
 	github.com/prometheus/client_golang v1.14.0
 	golang.org/x/sync v0.7.0
@@ -51,6 +52,7 @@ require (
 	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
 	github.com/chenzhuoyu/iasm v0.9.0 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/ebitengine/purego v0.8.1 // indirect
 	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
@@ -88,6 +90,7 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/subosito/gotenv v1.2.0 // indirect
+	github.com/tetratelabs/wazero v1.8.1 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
 	go.opencensus.io v0.24.0 // indirect

go.sum

@@ -106,6 +106,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
+github.com/ebitengine/purego v0.8.1 h1:sdRKd6plj7KYW33EH5As6YKfe8m9zbN9JMrOjNVF/BE=
+github.com/ebitengine/purego v0.8.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
@@ -119,6 +121,8 @@ github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWo
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
 github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
+github.com/gen2brain/avif v0.4.2 h1:rOZklPjZg3qTvKw/oR4xbdAe2JxvJGdFsGltnYmn2Mo=
+github.com/gen2brain/avif v0.4.2/go.mod h1:oePci7KPleKZ8X/2rjZ3FlVm2JFYjPwXiQpNgq9wrzs=
 github.com/getsentry/sentry-go v0.19.0 h1:BcCH3CN5tXt5aML+gwmbFwVptLLQA+eT866fCO9wVOM=
 github.com/getsentry/sentry-go v0.19.0/go.mod h1:y3+lGEFEFexZtpbG1GUE2WD/f9zGyKYwpEqryTOC/nE=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
@@ -445,6 +449,8 @@ github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcU
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s=
 github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
+github.com/tetratelabs/wazero v1.8.1 h1:NrcgVbWfkWvVc4UtT4LRLDf91PsOzDzefMdwhLfA550=
+github.com/tetratelabs/wazero v1.8.1/go.mod h1:yAI0XTsMBhREkM/YDAK/zNou3GoiAce1P6+rp/wQhjs=
 github.com/thoas/go-funk v0.9.3 h1:7+nAEx3kn5ZJcnDm2Bh23N2yOtweO14bi//dvRtgLpw=
 github.com/thoas/go-funk v0.9.3/go.mod h1:+IWnUfUmFO1+WVYQWQtIJHeRRdaIyyYglZN7xzUPe4Q=
 github.com/thoas/stats v0.0.0-20160726120248-152b5d051953 h1:PD6HdaGc9tn2a8W/33zxcA6DTq1D1K0O/PKWOGz3Lxo=

image/constants.go

@@ -7,6 +7,7 @@ var (
 		"image/jpeg": "jpg",
 		"image/png":  "png",
 		"image/webp": "webp",
+		"image/avif": "avif",
 	}
 
 	HeaderKeys = []string{

image/formats.go

@@ -10,4 +10,5 @@ const (
 	TIFF
 	BMP
 	WEBP
+	AVIF
 )

parameters.go

@@ -32,6 +32,7 @@ var formats = map[string]image.Format{
 	"png":  image.PNG,
 	"tiff": image.TIFF,
 	"webp": image.WEBP,
+	"avif": image.AVIF,
 }
 
 type Parameters struct {
@@ -64,7 +65,7 @@ func (p *Processor) NewParameters(ctx context.Context, input *image.ImageFile, q
 	}
 
 	if format != input.Format() {
-		index := len(filepath) - len(input.Format())
+		index := len(filepath) - len(input.Format()) - 1
 
 		filepath = filepath[:index] + format